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dmi: add BIOS, baseboard, chassis, product family and SKU labels (#2692)

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Co-authored-by: Claude <noreply@anthropic.com>
Signed-off-by: Claude <noreply@anthropic.com>
This commit is contained in:
Jan-Otto Kröpke
2026-10-11 22:41:16 +02:00
committed by GitHub
co-authored by Claude
parent ae58ced3b4
commit cd7acb5618
6 changed files with 465 additions and 77 deletions
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docs/collector.dmi.md
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@@ -16,9 +16,26 @@ None
## Metrics
| Name | Description | Type | Labels |
|---------------------|-----------------------------------------------------------------------------------------------------|-------|----------------------------------------------------------------------------|
| `windows_dmi_info` | A metric with a constant '1' value labeled by SMBIOS Type 1 (System Information) fields. | gauge | `product_name`, `product_serial`, `product_uuid`, `product_version`, `system_vendor` |
| Name | Description | Type | Labels |
|--------------------|-----------------------------------------------------------------------------|-------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `windows_dmi_info` | A metric with a constant '1' value labeled by SMBIOS identification fields. | gauge | `bios_date`, `bios_release`, `bios_vendor`, `bios_version`, `board_asset_tag`, `board_name`, `board_serial`, `board_vendor`, `board_version`, `chassis_asset_tag`, `chassis_serial`, `chassis_vendor`, `chassis_version`, `product_family`, `product_name`, `product_serial`, `product_sku`, `product_uuid`, `product_version`, `system_vendor` |
The labels come from these SMBIOS structures, using the first structure of
each type like the Linux kernel's `/sys/class/dmi/id` attributes that
node_exporter reads:
| SMBIOS structure | Labels |
|--------------------------------|-------------------------------------------------------------------------------------------------------------------------------------|
| Type 0 (BIOS Information) | `bios_vendor`, `bios_version`, `bios_date`, `bios_release` (2.4+) |
| Type 1 (System Information) | `system_vendor`, `product_name`, `product_version`, `product_serial`, `product_uuid`, `product_sku` (2.4+), `product_family` (2.4+) |
| Type 2 (Baseboard Information) | `board_vendor`, `board_name`, `board_version`, `board_serial`, `board_asset_tag` |
| Type 3 (System Enclosure) | `chassis_vendor`, `chassis_version`, `chassis_serial`, `chassis_asset_tag` |
Fields the firmware does not provide are exposed as empty labels, which
Prometheus drops on ingestion. `bios_release` is the system
BIOS major.minor release, e.g. `2.17`; some firmware, such as QEMU's SeaBIOS,
reports `0.0`. Firmware placeholders like `Not Specified` or
`Default string` are passed through unchanged, as on Linux.
On VMs the labels reflect the hypervisor-assigned identity; on physical hosts
they reflect the hardware SMBIOS data. If SMBIOS data cannot be read (e.g. in
@@ -27,11 +44,13 @@ some container environments), the collector will fail to build.
### Example metric
```
# HELP windows_dmi_info A metric with a constant '1' value labeled by product_name, product_serial, product_uuid, product_version, system_vendor from SMBIOS Type 1 (System Information).
# HELP windows_dmi_info A metric with a constant '1' value labeled by bios_date, bios_release, bios_vendor, bios_version, board_asset_tag, board_name, board_serial, board_vendor, board_version, chassis_asset_tag, chassis_serial, chassis_vendor, chassis_version, product_family, product_name, product_serial, product_sku, product_uuid, product_version, system_vendor from SMBIOS.
# TYPE windows_dmi_info gauge
windows_dmi_info{product_name="Standard PC (Q35 + ICH9, 2009)",product_serial="Not Specified",product_uuid="12345678-1234-1234-1234-123456789abc",product_version="pc-q35-9.2",system_vendor="QEMU"} 1
windows_dmi_info{bios_date="04/01/2014",bios_release="0.0",bios_vendor="SeaBIOS",bios_version="rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org",chassis_vendor="QEMU",chassis_version="pc-q35-9.2",product_name="Standard PC (Q35 + ICH9, 2009)",product_uuid="12345678-1234-1234-1234-123456789abc",product_version="pc-q35-9.2",system_vendor="QEMU"} 1
```
Empty labels are left out of this example for brevity.
## Useful queries
### Cross-exporter compatibility